1737493 - Can no longer log in to websites using hCaptcha with WebGL disabled (93.0)

Status: RESOLVED INCOMPLETE

(Core :: Graphics: CanvasWebGL, defect, P2)

Description

[rex4748]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0

Steps to reproduce:

I have WebGL disabled in about:config (webgl.disabled [true]), and attempt to log in to any site using hCaptcha for verification.

Actual results:

The captcha displays a green check mark, meaning it was solved sucessfully, but the site will not allow you to log in. The two do not appear to be communicating correctly in 93.0 with WebGL disabled.

Expected results:

The sites should allow you to log in. Enabling WebGL allows this to happen. In 92.x and below, using the exact same setup, this still works without issue. That means something was changed in Firefox, starting with 93.0, that is causing this.

Comment 1

[BugBot [:suhaib / :marco]]

The Bugbug bot thinks this bug should belong to the 'Core::Canvas: WebGL' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 2

[BugBot [:suhaib / :marco]]

The severity field is not set for this bug.
:jgilbert, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 5

[Kelsey Gilbert [:jgilbert]]

Can you attach your about:support?

Comment 7

[BugBot [:suhaib / :marco]]

Clear a needinfo that is pending on an inactive user.

Inactive users most likely will not respond; if the missing information is essential and cannot be collected another way, the bug maybe should be closed as INCOMPLETE.

For more information, please visit BugBot documentation.